Carstensz Pyramid
Elevation:	4,884 metres (16,023 feet)
Latitude:	4° 5′ S
Longitude:	137° 11′ E
Location:	Papua Province, Indonesia
Range:	Sudirman Range
First ascent:	1962 by Heinrich Harrer and 3 others
Easiest route:	rock/snow/ice climb

Carstensz Pyramid is the traditional name among mountaineers of Puncak Jaya, the highest mountain in Oceania. (Jan Carstensz was the name of the Dutch explorer who first reported it to Europeans; Puncak means peak, and Jaya means victory.) It is located in what is variously called the Sudirman Range or the Dugunduguoo, in Papua, the Indonesian-controlled western half of the island of New Guinea.

Carstensz is a peak on the more demanding of the two principal Seven Summits peak-bagging lists. It is held to have the highest technical rating (but not the greatest physical demands) of that list's ascents. The first foreigners to summit Carstensz were Heinrich Harrer, Temple, Kippaz and Huizenga, in 1962.

During the 1990s, separatist guerrilla violence erupted in the province between local groups and the Indonesian military. Due to the deteriorating political situation, the Indonesian government closed off the mountain to public access in November 1995. Access now requires a government permit, which always requires a lengthy wait and will be denied if political conditions are not conducive to having foreigners in the jungle.